Camera and electronic device
Provided are a camera and an electronic device. The camera comprises a camera body (1) and an electrically-controlled liquid crystal light-adjusting layer (13), wherein a lens (11) is provided in the camera body (1), and the electrically-controlled liquid crystal light-adjusting layer (13) is correspondingly arranged outside the lens (11) and configured to allow the lens (11) to receive outside light through the electrically-controlled liquid crystal light-adjusting layer (13); the electrically-controlled liquid crystal light-adjusting layer (13) is electrically connected to the camera body (1) through a switch (14). In the camera provided by embodiments of the present disclosure, an electrically-controlled liquid crystal light-adjusting layer (13) is provided on the front of the lens (11); in a case in which the electrically-controlled liquid crystal light-adjusting layer (13) is turned off, it is not possible to take pictures even if the camera (1) is manipulated by a hacker or a trojan-horse program. Therefore, it can prevent surreptitious photo-taking performed by lawbreakers using the camera, protect the user's rights, and avoid damage to the user.
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The present disclosure relates to the field of electronic accessories for computer, and in particular, to a camera and an electronic device.
BACKGROUNDIn daily life, there are some electronic products with a camera, such as various computers, cell phones, and so on. No protection device is provided for the camera of these electronic products. When frequently exchanging data mutually through mobile memory devices, our electronic products may probably be infected with trojan-horse viruses. Or, on the internet, some people intendedly distribute some trojan-horse viruses. Therefore, after someone takes control of the computer by means of the Trojan-horse virus, he may perform illegal activities such as surreptitious photo-taking, thus impairing the user's rights and causing the psychological damage to the user.
SUMMARYEmbodiments of the present disclosure provide a camera preventing surreptitious photo-taking and an electronic device provided with such a camera.
According to an embodiment of the present disclosure, there is provided a camera comprising a camera body and an electrically-controlled liquid crystal light-adjusting layer, wherein a lens is provided in the camera body, the electrically-controlled liquid crystal light-adjusting layer is correspondingly arranged outside the lens, and the electrically-controlled liquid crystal light-adjusting layer is electrically connected to the camera body through a switch.
Optionally, the electrically-controlled liquid crystal light-adjusting layer is made of Polymer Dispersed Liquid Crystal (PDLC).
Optionally, an indication lamp is provided in the camera body, and the indication lamp is connected to the electrically-controlled liquid crystal light-adjusting layer for indicating the operational state of the electrically-controlled liquid crystal light-adjusting layer.
Optionally, a mounting rack is provided in the camera body, and the lens and the electrically-controlled liquid crystal light-adjusting layer are both arranged on the front surface of the mounting rack.
Further, the mounting rack has fixing holes respectively on its two ends.
Optionally, the switch is arranged at an edge position of one side of the camera body, and a manual button is provided in the switch to control the ON and OFF of the switch.
An embodiment of the present disclosure further provides an electronic device comprising the camera described above.
In the camera provided by embodiments of the present disclosure, an electrically-controlled liquid crystal light-adjusting layer is provided on the front of the lens; in a case in which the electrically-controlled liquid crystal light-adjusting layer is turned off, it is impossible to take pictures even if the camera is manipulated by a hacker or a trojan-horse program. Therefore, it can prevent surreptitious photo-taking performed by the lawbreakers using the camera, and protect the user's rights, and avoid damage to the user.
In the figures, a list of elements represented by reference symbols is as follows:
1 camera body, 11 lens, 12 fixing hole, 13 electrically-controlled liquid crystal light-adjusting layer, 14 switch, 15 indication lamp, 16 mounting rack, 3 mounting frame, 31 light-passing hole, 32 groove, 33 fixing pillar, 34 open hole of mounting frame
DETAILED DESCRIPTIONIn the following, specific implementations of embodiments of the present disclosure will be described in detail in connection with the drawings.
As shown in
The principle of the PDLC is as follows. When there is no voltage is applied, as shown in
A manual button is provided in the switch 14 to control the ON and OFF of the switch 14, and the switch 14 is arranged at an edge position of one side of the camera body 1. Under a case in which the electronic device is manipulated by a trojan-horse software, if the switch employs an electronic switch such as a thyristor, an optoelectronic switch or the like, it can be easily manipulated by the trojan-horse software; therefore the effect of preventing surreptitious photo-taking cannot be achieved. Further, an indication lamp is provided in the camera body, and the indication lamp is connected to the electrically-controlled liquid crystal light-adjusting layer for indicating an operational state of the electrically-controlled liquid crystal light-adjusting layer. The indication lamp presents a light-on state, indicating that the switch is in the ON state. To the contrary, the indication lamp presents a light-off state, indicating that the electrically-controlled liquid crystal light-adjusting layer is not adjusted by a voltage, and the switch is in the OFF state.
As shown in
An embodiment of the present disclosure also provides an electronic device comprising a camera as described above. The electronic device can be a product provided with a camera, such as a computer, a cell phone, and so on.
For example, if the electronic device is an integrated personal computer, as shown in
The mounted camera is as shown in
When the user takes photos normally, the switch 14 is switched on to apply a voltage to the electrically-controlled liquid crystal light-adjusting layer 13, and the indication lamp 15 is in the light-on state. At this time, the user takes photos normally.
When the user switches off the switch 14, the indication lamp 15 becomes into a light-off state, and the camera stops operation. At this time, even if the camera is manipulated by a hacker, the lens 11 of the camera is blocked by the electrically-controlled liquid crystal light-adjusting layer 13 without a voltage applied. At this time, although the camera is manipulated by hacker, no pictures can be seen, and thus the effect of preventing surreptitious photo-taking through the camera can be achieved.
The above implementations are only for illustrating embodiments of the present disclosure, but not limiting the present disclosure in any way. Various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall in the scope of the present disclosure which should be defined by the claims.
The present application claims the priority of Chinese Patent Application No. 201310535771.6 filed on Nov. 1, 2013, and the entire content of which is incorporated as a part of the present application by reference.
Claims
1. A camera comprising a camera body and an electrically-controlled liquid crystal light-adjusting layer, wherein a lens is arranged in the camera body, the electrically-controlled liquid crystal light-adjusting layer is correspondingly arranged outside the lens, and the electrically-controlled liquid crystal light-adjusting layer is electrically connected to the camera body through a switch;
- wherein the electrically-controlled liquid crystal light-adjusting layer is made of a polymer dispersed liquid crystal film;
- if the electrically-controlled liquid crystal light-adjusting layer is powered on via the switch, the electrically-controlled liquid crystal light-adjusting layer is in a transparent status; otherwise, the electrically-controlled liquid crystal light-adjusting layer is in a non-transparent status;
- wherein a manual button is arranged on the switch to control ON and OFF of the switch.
2. The camera according to claim 1, wherein an indication lamp is arranged in the camera body, the indication lamp is connected to the electrically-controlled liquid crystal light-adjusting layer for indicating an operational state of the electrically-controlled liquid crystal light-adjusting layer.
3. The camera according to claim 1, wherein a mounting rack is arranged in the camera body, and the lens and the electrically-controlled liquid crystal light-adjusting layer are both arranged on a front surface of the mounting rack.
4. The camera according to claim 3, wherein the mounting rack has fixing holes arranged respectively on two ends.
5. The camera according to claim 1, wherein the switch is arranged at an edge position of one side of the camera body.
6. An electronic device comprising a camera, wherein the camera comprises a camera body and an electrically-controlled liquid crystal light-adjusting layer, wherein a lens is arranged in the camera body, the electrically-controlled liquid crystal light-adjusting layer is correspondingly arranged outside the lens, and the electrically-controlled liquid crystal light-adjusting layer is electrically connected to the camera body through a switch;
- wherein the electrically-controlled liquid crystal light-adjusting layer is made of a polymer dispersed liquid crystal film;
- if the electrically-controlled liquid crystal light-adjusting layer is powered on via the switch, the electrically-controlled liquid crystal light-adjusting layer is in a transparent status; otherwise, the electrically-controlled liquid crystal light-adjusting layer is in a non-transparent status;
- wherein a manual button is arranged on the switch to control ON and OFF of the switch.
7. The electronic device according to claim 6, wherein an indication lamp is arranged in the camera body, the indication lamp is connected to the electrically-controlled liquid crystal light-adjusting layer for indicating an operational state of the electrically-controlled liquid crystal light-adjusting layer.
8. The electronic device according to claim 6, wherein a mounting rack is arranged in the camera body, and the lens and the electrically-controlled liquid crystal light-adjusting layer are both arranged on a front surface of the mounting rack.
9. The electronic device according to claim 6, wherein the switch is arranged at an edge position of one side of the camera body.
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Type: Grant
Filed: Jun 30, 2014
Date of Patent: Aug 7, 2018
Patent Publication Number: 20160266418
Assignees: BOE TECHNOLOGY GROUP CO., LTD. (Beijing), BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD. (Beijing)
Inventor: Wei Huang (Beijing)
Primary Examiner: Trung Diep
Application Number: 14/409,065
International Classification: G02F 1/137 (20060101); H04N 5/225 (20060101); G03B 9/00 (20060101); G03B 11/00 (20060101); G03B 11/04 (20060101); G02F 1/1334 (20060101); G06F 21/56 (20130101); G06F 21/62 (20130101); H04N 5/232 (20060101); G06F 1/16 (20060101);